US Attorney General Jeff Sessions has said he now recalls a Trump campaign meeting in which high-level Russian connections were raised.
At the meeting, former adviser George Papadopoulos said he could use his Russian connections to set up a meeting between Trump and Vladimir Putin.
Sessions had previously said he did not know of any communication between the campaign and Russian officials.
But he insisted to a committee hearing on Tuesday that he had not lied.
Jeff Sessions, as the then senator for Alabama, was one of Mr Trump‘s earliest supporters in his bid for the White House and served on his election campaign team.